That is nonsense , just ask them what brand they are using. Botox is made by one company ( allergan). If they are advertising botox and it is not Allergan , then report them to trading standards. There is a lot of alternatives i.e. line softeners etc, but if they advertise Botox then it has to be Allergan. Do not be afraid to ask, it is a poison after all. The company allergan discovered the benefits of onabotulinumtoxin , and trade marked the name. Ring and ask what brand they use, they can not advertise botox and use a different brand. A good prescriber will always make it it up in front of you , and discard any left overs , it has a short life spam once made up. Be very wary of any one, who turns up with the botox already made, it should be done in front of you.